(1) Where an immigration officer decides that an immigrant is not a prohibited immigrant he or she may, and shall if required so to do, issue to the immigrant a certificate to that effect.
(2) The certificate shall be in such form as may from time to time be approved by the Chief Immigration Officer modified, if necessary, to suit the circumstances of any particular case.
(3) The certificate shall contain such particulars and marks, together with any finger prints, as may be deemed necessary for the purpose of identification.
(4) The certificate may be endorsed on the passport or other document establishing the identity and national status of the person to whom the certificate relates.